If you need a good cry or a reality check on "the one," it's streaming there now. 10/10 would recommend (but bring tissues).
Instead of searching for dead or risky links, here are the current, safe, and legal options for streaming the film. (Availability changes monthly, so checking a service like JustWatch is wise.) 500 days of summer bflix
500 Days of Summer is frequently rotated off major paid platforms. One month it is on Amazon Prime; the next, it is behind a rental paywall. Bflix provides permanence. Once you find the link, it is usually there, waiting for you at 2 AM. If you need a good cry or a
(Best for Twitter/X or a sad Instagram caption) here are the current