Alicia Vikander looked forward to her ''pizza days'' when she was in training for Tomb Raider'.

The 29-year-old actress plays Lara Croft in the classic action movie's 2018 reboot, and her determination to get in shape for the role meant she looked forward to Sunday's where she could indulge in a cheat meal.

Speaking to Glamour Magazine, she said: ''[We were training] five to six days a week, and Sundays were pizza days. I think the first thing I said when I woke up on Sunday's was 'its pizza day!'''

But the Academy Award-winning beauty loved how the 'Tomb Raider' training made her feel and she has been trying to incorporate more muscle building into her post-filming work out routines.

She said: ''There were so many different skills I had to learn and I also gained around 10lbs to 12lbs of muscle. I worked with my trainer for four months leading up to it, then every day before I started to film I was in the gym. I'd done a lot more yoga and Pilates and cardio [before the role] and now I've started to do a lot more muscle training. It was something I really enjoyed. I felt very much in my body and I loved having another strength.''

Now she is a movie star in-demand, Alicia has to wear make-up all the time for her roles which means when she's not on set she doesn't apply many products because she suffers from ''extremely dry'' skin.

'The Danish Girl' star explained: ''Now I have a wonderful professional team to put on my makeup for camera and things, I rarely use makeup in my everyday life, but I love skincare. If anything, my skin goes extremely dry. I could put hand cream on my face and it still goes in. On flights I always put on masks and I have night cream as my day cream.''

Alicia also makes sure to prioritise sleep even with her busy work schedule, and admits she gets ''a bit grumpy'' when she misses out on her rest.

She confessed: ''[Sleep] changes the way you look and the way you feel. My mother used to tell me when I was a kid that I had to go to bed at 7.30pm and when I'd ask why she'd say, 'Well you do get a bit grumpy when you don't have routines'. Then I realised when I was a bit older, that's actually true.''