Talulah Riley looks chic in a yellow dress as she

Talulah Riley looks chic in a yellow dress as she cozy up at Ascot with beau Thomas Brodie-Sangster

Talulah Riley turns heads in a chic yellow midi dress as she cozy up with beau Thomas Brodie-Sangster at Ascot Racecourse

Talulah Riley put on a beloved show with boyfriend Thomas Brodie-Sangster at Ascot Racecourse on Saturday.

The 36-year-old actress stood out from the crowd in a yellow floral midi dress and black heels as she lounged with her partner at the QIPCO King George Diamond Day.

Talulah, the ex-wife of billionaire Elon Musk, 50, beamed while wearing a natural makeup palette and straightening her blonde tresses.

Couple: Talulah Riley put on a beloved show with boyfriend Thomas Brodie-Sangster at Ascot Racecourse on Saturday

Couple: Talulah Riley put on a beloved show with boyfriend Thomas Brodie-Sangster at Ascot Racecourse on Saturday

Meanwhile, Thomas, 31, cut a dapper figure in a blue suit, brown shoes and a yellow tie to match his girlfriend’s ensemble.

The couple, who met on the set of Disney’s Pistol, were all smiles as they snuggled up for photos at the event.

Thomas stars alongside Talulah in Danny Boyle’s Sex Pistols drama and plays pop Svengali Malcolm McLaren for her fashion designer Vivienne Westwood.

They began dating during filming over the summer and their relationship went undiscovered until The Mail on Sunday learned that Talulah’s previous romance with Matthew Rice had come to an abrupt end.

Looking good: Thomas, 31, cut a dapper figure in a blue suit, brown shoes and yellow tie to match his girlfriend's ensemble

Looking good: Thomas, 31, cut a dapper figure in a blue suit, brown shoes and yellow tie to match his girlfriend’s ensemble

Stunning: The 36-year-old actress stood out from the crowd at the QIPCO King George Diamond Day in a yellow floral midi dress and black heels

Stunning: The 36-year-old actress stood out from the crowd at the QIPCO King George Diamond Day in a yellow floral midi dress and black heels

Lauren Morgan and Lee Taylor showed off their sensational style in all-black ensembles as they were also in attendance to watch the races.

Sophie Molds and Ranvir Singh both looked incredible in chic white dresses and fancy headpieces.

The King George Diamond Weekend is an exciting two day thoroughbred horse racing event held annually in July at Ascot.

Loved: Lauren Morgan and Lee Taylor showed off their sensational style in all-black ensembles as they were also in attendance to watch the races

Loved: Lauren Morgan and Lee Taylor showed off their sensational style in all-black ensembles as they were also in attendance to watch the races

Gorgeous: Sophie Molds and Ranvir Singh both looked incredible in chic white dresses and fancy headpieces Looking good: The girls wowed as they posed in the VIP area

Gorgeous: Sophie Molds and Ranvir Singh both looked incredible in chic white dresses and fancy headpieces

Stylish: Karl and his brother Kevin Flag demonstrated their impeccable sense of style at the magnificent event

Stylish: Karl and his brother Kevin Flag demonstrated their impeccable sense of style at the magnificent event

Chic: Laura Johnson flashed her abs in a pink skirt and crop top, while husband Glen looked dapper in a blue shirt and pants

Chic: Laura Johnson flashed her abs in a pink skirt and crop top, while husband Glen looked dapper in a blue shirt and pants

The top-class event attracts the best horses from all over Europe.

Dubbed the summer garden party of British racing, the two-day celebrations are built around the QIPCO outings of King George VI and Queen Elizabeth, which have been Europe’s mid-season championship races for middle-distance horses for 70 years.

After the race, the excitement continues with a DJ set by radio host, singer-songwriter and TV personality Fleur East at the famous Ascot Bandstand.

Beauties: Natalie Rushdie and Eunice Olumide were all smiles as they donned unique colorful dresses at the event

Beauties: Natalie Rushdie and Eunice Olumide were all smiles as they donned unique colorful dresses at the event

Excursion: The King George Diamond Weekend is an exciting two day thoroughbred horse racing meeting held annually in July at Ascot

Excursion: The King George Diamond Weekend is an exciting two day thoroughbred horse racing meeting held annually in July at Ascot