All Events, Closures and Refurbishments at Disneyland Park or Downtown Disney in Disneyland during March and August of 2015 and 2020

March 2015

Early 2015 - Apr. 10Tomorrowland : Disneyland ParkMagic Eye Theater The theater house the sneak preview of the upcoming film "Tomorrowland." This sneak peek will play every 15-20 minutes throughout the day. No FastPass+ will be available. It's not known at this time whether Captain EO will return when the sneak preview is over.
Early 2015 - Apr. 02Critter Country : Disneyland ParkHungry Bear Restaurant
Jan. 07 - May. 16Fantasyland : Disneyland ParkMatterhorn
Feb. 02 - Jul. 02Fantasyland : Disneyland ParkPeter Pan's Flight

August 2015

Apr. 01 - 2016Tomorrowland : Disneyland ParkInnoventions

March 2020

May. 30 - No details availableDowntown Disney : Downtown DisneyDowntown Disney West End Closures The following Downtown Disney locations closed in preparation for the construction of a proposed new hotel which has since been canceled. No details on what might be going into the now available retail spaces.
 
AMC Theaters
ESPN Zone
Rainforest Cafe
2019 - Early 2023Disneyland Park : Disneyland ResortMickey & Minnie's Runaway Railway (DLR) The first major Mickey-themed ride-through attraction, is coming to Disneyland’s Mickey’s Toontown in Early 2023 as part of the reimagination of Mickey’s Toontown. The ride will be housed in the El CapiTOON Theater, where Mickey and Minnie are premiering their newest short, Perfect Picnic.
January 21, 2020 - March 2020Disneyland Park : Disneyland ResortHaunted Mansion Disneyland Park's Haunted Mansion to close for 2+ months for interior and exterior refresh, mechanical refurbishment
March 14th, 2020 - July 25th, 2022Disneyland Park : Disneyland ResortFinding Nemo Submarine Voyage Finding Nemo Submarine Voyage closed for refurbishment on March 14th, 2020. It will reopen on July 25th, 2022.

August 2020

May. 30 - No details availableDowntown Disney : Downtown DisneyDowntown Disney West End Closures The following Downtown Disney locations closed in preparation for the construction of a proposed new hotel which has since been canceled. No details on what might be going into the now available retail spaces.
 
AMC Theaters
ESPN Zone
Rainforest Cafe
2019 - Early 2023Disneyland Park : Disneyland ResortMickey & Minnie's Runaway Railway (DLR) The first major Mickey-themed ride-through attraction, is coming to Disneyland’s Mickey’s Toontown in Early 2023 as part of the reimagination of Mickey’s Toontown. The ride will be housed in the El CapiTOON Theater, where Mickey and Minnie are premiering their newest short, Perfect Picnic.
March 14th, 2020 - July 25th, 2022Disneyland Park : Disneyland ResortFinding Nemo Submarine Voyage Finding Nemo Submarine Voyage closed for refurbishment on March 14th, 2020. It will reopen on July 25th, 2022.