Clint Howard was 49 in Night at the Museum: Battle of the Smithsonian when he played the character 'Air and Space Mission Control Tech #1'.
That was over 15 years ago in 2009.
Today he is 64, and has starred in 157 movies in total, 43 of those since Night at the Museum: Battle of the Smithsonian was released.
In Night at the Museum: Battle of the Smithsonian, I think Clint Howard looks: