this was adapted from a theatre play, and it shows. it shows a lot.
it's kind of sad to see how so much of the film relies on marilyn monroe to prevent it from drowning. it's actually her performance what brightens up the whole script, as the eternal monologues of tom ewell, who completely lacks the charisma and charm to make them work, drag it down every time they go on and on on for no aparent reason other than just building an unsufferable character that gets totally outshined once marilyn appears on the screen.
she makes the film funnier, brighter and sharper. she might play a little dumb blonde, but in an interesting contrast, everything seems much more stupid when she's around. specially her co-star.
honestly, it wasn't a disaster, but it was kind of a let down considering this is the film with the most iconic image of cinema in the XX century.