The phrase "amusing ending" is correct and usable in written English.
You can use it to describe a conclusion of a story, film, or any narrative that is entertaining or humorous.
Example: "The film had an amusing ending that left the audience laughing and satisfied."
Alternatives: "funny conclusion" or "humorous finale".
Still, just in case, I'll refrain from giving away the amusing surprise ending.
In spite of their seeming lightness, the works of such poets as Vladimir Mayakovsky, W.H. Auden, Louis MacNiece, Theodore Roethke, and Kenneth Fearing are usually seriously intended; they may begin by being amusing but often end in terror or bitterness.
After a screening at the Toronto Film Festival last month, when Krokidas decided to celebrate with a dip in a shallow decorative pool at a high-end lounge, it was Radcliffe who let him know that the amusing stunt could end up on the Internet.
Facebook: do not post amusing photographs or messages curtly ending a relationship.
The second half is a seriously overwrought melodrama in which the fault lines that generated laughs in the first half open up, doing damage — in one case irreversible — to all of the marriages, before a tacked-on happy ending featuring an amusing uncredited cameo.
The effect is amusing, yet ominous, because the phrases keep ending on unexpected harmonies.
Rather than just ending up as a curious and amusing ironic experiment, it actually flows very well.
When it does, there's a pretty tasty half-hour of inventive staging and amusing acting before things lapse back into predictability for the inevitable happy ending.
Before each live broadcast on NBC, the Olympic figure skaters-turned-commentators bust out an amusing handshake ― which ends with what appears to be a slam-dunk.
Although, in one review, referring to "Gangsta Love", "S Club's spiritual home is the suburban disco, not urban underground clubs, and their attempt to go garage on "Gangsta Love" ends up amusing rather than authentic".
