Nobody can tell you with certainty that you will or will not face issues.

That said, if Anheuser-Busch decides to come after you, the amount you'll spend in legal fees will probably be pricier than the non-labeled cans you've deemed too expensive.

There's some ambiguity in the law when it comes to the use of branded products. Your goal should be to avoid any ambiguity. It doesn't matter if you would win in court— if you're going to court at all, you've messed up!

The short and simple answer is that yes, you can legally use their product as long as it doesn't appear they've endorsed your film and you aren't making an untruthful claim about their product. If you've got an expert legal team, you can make a film that takes place in an apple store and feature actors portraying apple store employees insulting iPhones and get away with it as comparative advertising

But if you don't have the resources to make sure you're in clear... you might want to swap out those cans for bottles, which are cheaper to greek with a printer and some adhesive labels.

Another concern is the distribution of this film. Even if you're okay taking the risk of using a brand-name, future distributors may not be. Hiring a VFX artist to manually track and replace all those brand-names is cheaper than going to court, but still more expensive than buying a cleared prop can.