Dan Stevens was 31 in Night at the Museum: Secret of the Tomb when he played the character 'Sir Lancelot'.
That was over 9 years ago in 2014.
Today he is 41, and has starred in 38 movies in total, 21 of those since Night at the Museum: Secret of the Tomb was released.
In Night at the Museum: Secret of the Tomb, I think Dan Stevens looks: