THINGS YOU NEED TO KNOW

• Some theaters are planning 24-hour-a-day showings of "The Avengers: Endgame" when it opens tomorrow. With early ticket sales, they're thinking this could be a $900 million movie opening weekend.
• Batman finally shows up on the series finale of "Gotham" tonight on FOX.
• Jennifer Garner is People's "Most Beautiful" person of 2019, the magazine announced on Tuesday night.
• Today is the day that Joe Biden is supposed to announce he's running.
• A new study says Americans have increased their sitting time by over an hour during the past decade. We're spending almost a third of our waking hours sitting down, and computer use is partly to blame.
• 2019 Record Store Day on April 13 yielded historic week for vinyl album sales. Albums by Grateful Dead, Bob Dylan & The Rolling Stones were among the top-selling Record Store Day, according to Nielsen Music.
• Another death at the Grand Canyon this week. Tuesday, a 70-year-old woman fell to her death.
• The NFL Draft begins tonight at 8pm Eastern Daylight Time. It's being held in Nashville for the very first time. ABC, ESPN and The NFL Network will be showing the prime-time stuff.
• At one of the "Avengers" premieres, Scarlett Johansson wore a backless dress which showed off her new massive back tattoo. Flowers, with a little lamb.
• This may have gone unnoticed, but a federal court ruled on Monday that the chalk line the meter maid puts on your tire is illegal. Because the car is parked legally, there's no probable cause to assume they will violate the law. Therefore, it amounts to searching without a warrant.
• North Korean leader Kim Jong Un meets with Russia's Vladimir Putin today.
• That Jeopardy champ James Holzhauer keeps on winning and has passed the $1 million mark on the show.
• The FDA has approved the first generic nasal spray to treat opioid overdoses.
• A study says 1 in 5 American kids don't drink water on any given day.
• A Babe Ruth jersey is expected to sell at auction for $4.5 million.
• Former Major Leaguer Eric Byrnes set a 24-hour golf speed record of playing 420 holes.
• The family of J.R.R. Tolkien has issued a statement against an upcoming film about the author of the popular "The Lord of the Rings" trilogy and "The Hobbit." "The family and the Estate wish to make clear that they did not approve of, authorize or participate in the making of this film. They do not endorse it or its content in any way."