Gangs of New York.
I love Scorsese and I usually don't mind how long his films are, case in point Killers of the Flower Moon. But Gangs of New York is not only too long and weirdly self indulgent, but whatever Cameron Diaz is doing in her role is... Not great and makes me sad every time.
Edit: I realize I inverted flowers and killer in Killers of the Flower Moon.
This can't be a real park. How would you even get to the waterslides, what stair system would work with this?