Where to watch
Not available in United States
Streaming in 1 other country
Someday I'll Know isn't on any streaming service in United States right now, but it's available in Japan. Streaming rights are licensed per country.
Cast · Directed by Kihachi Okamoto
More from Misa Uehara · Lead actress
The Hidden Fortress
1958 · 8.0
Swordsman With the Torn Umbrella
1974 · 10.0
The Three Treasures
1959 · 5.5
Saga of the Vagabonds
1959 · 6.8
The Storm of the Pacific
1960 · 6.0
Desperado Outpost
1959 · 6.3
Modern Salaryman: Bushido Romance
1960
University Bandits
1960 · 9.0
The College Ruggers
1959 · 9.0
See all fromMisa Uehara
More from Akira Takarada · Co-star actor
More from Kihachi Okamoto · Director
The Sword of Doom
1966 · 7.8
Zatoichi Meets Yojimbo
1970 · 6.8
The Battle of Okinawa
1971 · 7.8
Japan's Longest Day
1967 · 7.3
Rainbow Kids
1991 · 6.7
The Three Musketeers of Japan: Adieu, Tokyo!
1972
The Last Gunfight
1960 · 6.2
Blood Type: Blue
1978 · 6.1
Floating Clouds
1955 · 7.7
Kill!
1968 · 7.0
See all fromKihachi Okamoto
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Someday I'll Know — streaming FAQ
Which OTT platform streams Someday I'll Know?
Someday I'll Know isn't on any streaming service in United States yet, but it's available in Japan. Streaming rights differ by country — switch your country in the header to see where.
Is Someday I'll Know on Netflix?
No, Someday I'll Know is not on Netflix in United States as of September 2026.
Is Someday I'll Know on Amazon Prime Video?
No, Someday I'll Know isn't on Amazon Prime Video in United States right now.
Where can I watch Someday I'll Know for free?
Someday I'll Know isn't streaming in United States yet, so there's no way to watch it free at the moment.
