Hmmmm.......personally I'd say there are no default bad topics on conversation. Even really "weird" conversational topics can be good if the moment is right and you're both participating.
But reading the other persons verbal cues and going along with the flow is the important thing?
Small talk is fairly underrated, but for first meets, I'm a massive fan of "building up", sticking to "how was your day?", "weather, journey,work, family?". Or the surroundings or places to go to, or something quite "safe". Or ask about something quite banal on their profile.
Its not showing how "out there" or "bonded" you are at this stage -that's impossible - but just getting comfortable with someone who is practically a complete stranger to you?
I don't really like people who "jump" in with the questions straight away as if trying to "provoke intimacy with how zany we are". We're still strangers ffs.
Classic example: guy last night:
- "do you like me? you don't like me do you? you look like you don't like me? you face looks like X "
- "your face has X expression on it again"
Like within 5 minutes of meeting? 
We've exchanged a few e-mails about foreign films and liked the look of each other in photos. Wtf?