Explain the simile, he gazed at me a long time as of I were a slot machine into which he had, without results, dropped a nickel

Read the movie summary. two rival magicians compete for fame and success in edwardian london. when their bitter feud begins to escalate, they each resort to more and more dangerous tricks to try to outdo the other, ultimately placing the lives and sanity of those around them in jeopardy. based on this summary, the film is most likely a(n) action thriller dramatic thriller psychological thriller science fiction thriller