Here are 25 things you probably missed when watching The Secret Life of Pets. Illumination has become quite the animated powerhouse over the last several years. This is largely thanks to their Despicable Me franchise and subsequent Minions prequels, but one of their other major hits came in 2016 with a movie revolving around what pets do when humans aren't around. The great premise lured audiences in over and over that summer, with the film earning over $875 million worldwide.

The success of this film saw Illumination greenlight a sequel, and The Secret Life of Pets 2 is now out in theaters, giving fans of the first movie a chance to revisit the world. Some fans have undoubtedly watched the original a few times at this point, but they may not have picked up on several clever Easter eggs that The Secret Life of Pets includes.

Related: Screen Rant's The Secret Life of Pets 2 Review

The newest video from Screen Rant takes a look back on the original The Secret Life of Pets movie and combs through every frame to find as many references as possible. Unsurprisingly, the film is loaded with Easter eggs to other Illumination movies, while larger brand synergy also is responsible for a few references that are a bit less obvious. Check out all 25 entries in the video featured at the top of this post.

Illumination and The Secret Life of Pets

As the highest grossing Illumination movie domestically, all of these references in The Secret Life of Pets only strengthen the studio's overall imprint. Audiences got to see several smart ways of bringing the Minions into the film, but they may not have noticed that Gru is also included in the movie or that the giant pig Tattoo has the unicorn stuffed animal from Despicable Me inked on his back. The Secret Life of Pets wasn't just looking back on Illumination's established hits though, as the film also included a moment to promote the then-upcoming release of Sing.

These Illumination references are just the beginning of what The Secret Life of Pets includes, as there are also possible references to the Siamese cats in Lady and the Tramp and the iconic lasagna-loving cat Garfield. The animated film even included a familiar sound from Super Mario Bros., a deep-cut reference to Jane the Virgin, an obvious one to Alien for the older audiences, and possibly even a strange connection to Fool's Gold through the casting of Kevin Hart as the bunny Snowball. If The Secret Life of Pets could include all of these references, we can only imagine what the animators managed to include in The Secret Life of Pets 2.

MORE: Does The Secret Life of Pets 2 Have A Post-Credits Scene?