It's no good pretending that any relationship has a future if your record collections disagree violently or if your favorite films wouldn't even speak to each other if they met at a party.

This quote means that if two people do not share the same interests, it is unlikely that their relationship will succeed. It is an example of a potential deal breaker in a relationship. For example, if they both have vastly different music tastes or their favorite movies are not the same, it is unlikely they will be able to find common ground or have successful communication in the future.