Looks like killing off half the cast ofInfinity Waris paying off big time for Marvel.

After just one week of pre-sales,Watch Easy Does It Online Avengers: Endgameis reportedly outselling Avengers: Infinity War5 to 1 on Fandango. Earning over $2 billion worldwide during its initial release, Infinity Waris the second highest-grossing Marvel film to hit theaters -- second only to the unprecedented success of Black Panther.

The highly-anticipated final Avengers installment has also beaten the records for both highest first day and highest first week of pre-sales on Fandango, accolades previously held by Star Wars: The Force Awakens.

On the first day of Endgame ticket sales, users flocked to online box offices at such high rates that the AMC Theaters site temporarily went down -- and Fandango was forced to put user sessions "on pause" while they sorted out site demand.

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Fandango reports thousands of Endgameshowings are already sold out across the country. Many theaters are scrambling to meet demand, adding showtimes as early as 4:00 am and 6:30 am on opening day.

Worried you won't snag a seat? Don't be. According to Fandango's Managing Editor Erik Davis, there are still "plenty of tickets available on Fandango for the year’s most anticipated movie."

Avengers: Endgame hits theaters April 26.