Alexandra Daddario shows off her flat stomach in a tiny bikini top on set

She stars as Summer Quinn in the remake of the popular 19902 TV show.

And Alexandra Daddario was seen getting stuck into the role as filming continued in Miami for the upcoming Baywatch movie on Tuesday afternoon.

The brunette beauty showcased her slim physique in a racer back bikini top and black shorts as she watched Zac Efron and Dwayne ‘The Rock’ Johnson character take part in a pull up contest.

The 29-year-old actress’ flat stomach was highlighted by the black and blue swimwear by Australian brand Seafolly, while her pert derriere was covered up by her tiny shorts.

The role of Summer was originally played by actress Nicole Eggert, 44, and Alexandra appears to be enjoying her chance to bring the character to life in the new remake.

Daddario is just one of several beauties who have been cast in Baywatch – Kelly Rohrback, Ilfenesh Hadera and Priyanka Chopra are also on board.

Sharing fun behind-the-scenes snaps with her fans on Instagram, the actress posted a picture of her model co-star Kelly Rohrbach taking a nap between takes.