Some people matter so much to their followings that they can become the inspiration for entire celebrations. But while certain cult followings might be inclined to throw parties in honor of Bill Murray or The Big Lebowski, they generally wouldn't expect Murray himself or Jeff Bridges to necessarily show up to either of them.
Not only is that because Bill Murray seems dedicated to doing the last thing anyone would expect, but because he and Bridges are men with very busy lives.
And indeed, it's hard to think of someone with more to do in a given day than the President of the United States. And yet, fortune just happened to hold that one couple would see their wedding's inspiration unexpectedly stop by.