Great idea, poor execution

Poor idea, poor execution.

Listen to your enemy, for God is talking

I think it worked very well for the first three quarters or so. The finale let it down, giving more space to the young and inexperienced actors and really just going through the motions to get to a happy ending. And the very ending with the laughter was utterly bad.

What happened with this movie? Both Clive and Juliette have talent and have built an enviable career, and then you get this. The screenplay was so bad it made them bad actors, if only Clive wasn't so good that he managed to go through that speech at the end for example sounding credible.
I mean, the story is predictable from the first scene they meet. And how unrealistic their first conversation was... Anyway, I really thought this is going to be a real life portrayal of a romance, but turned out to be unconvincing, improbable, lame and a cliche.
Having those two actors together, this could have bin sooo much better.

The definition of a cliche sounds like a good comment :):
"A cliché or cliche (/ˈkliːʃeɪ/ or /klɪˈʃeɪ/) is an expression, idea, or element of an artistic work which has become overused to the point of losing its original meaning or effect, even to the point of being trite or irritating, especially when at some earlier time it was considered meaningful or novel." (Wiki)

We should have understood at some point why he turned to the bottle.

The bad things he did, with the poem and with the art, were bad, but not soo bad as the movie tried to make out. It wasn't life or death or anything.