Guardians of the Galaxy is one of the cinematic hits of the summer. It was certainly a risky project and many people wondered why Marvel Studios would make it ahead of so many other popular properties, but it's already taken nearly $314 million at the box office and has received rave reviews from critics and audiences alike. Aside from the epic action, awesome aesthetics, hilarious humour and some stand-out performances from the likes of Chris Pratt and Dave Bautista, one of the coolest things about the movie is its abundance of things to look and listen out for. Given its cosmic setting and the fact that it journeys in to a host of weird and wonderful locations across space, there are countless Easter eggs and references from the wider Marvel universe and beyond. We've already discussed twenty of those in a previous WhatCulture.com article, but there were even more that that which you may have missed. Links to other Marvel Cinematic Universe films, references to the Marvel comic books, pop culture references and many more fun inclusions can be spotted if you look and listen closely and, in this article, we're going to take a look at even more of them. Here are fifteen Easter eggs and references you may have missed in Marvel's Guardians of the Galaxy (obviously contains spoilers)...