Charlize Theron regrets not training harder for Prometheus.
The 36-year-old actress - who plays corporate figurehead Meredith Vickers in the Ridley Scott-directed sci-fi movie - felt out of shape while filming "sexy" running scenes and thinks they turned out looking more "ugly" than attractive due to her lack of preparation for the role.
She said: "I probably should have trained a little bit because I found myself in the middle of Iceland having to run with all this heavy gear on my back. It was one take of sexy running and then I was all ugly running. Ridley going, 'Run. Run!' was pretty much the ugly running."
Charlize found her transformation into a hard-nosed businesswoman in the motion picture - which follows the crew of the Prometheus space ship in 2085 as they go in search of aliens - came to her naturally as soon as she donned a suit.
She added to Hello! magazine: "I don't ever set out to play a character with strength. I try to kind of find the circumstance and try to be as honest as I can.
"Once we all understood the world which she [Meredith] was in, where we wanted to go with her, and what we wanted to explore with her, that seeps in and you all of a sudden put that suit on and are like, 'Wow, yeah, I wanna order somebody around.' And you just kinda find it."
- Bang! Showbiz