No, a list of "all movies" is too long for here, about 30 "L"
movies are produced in the USA alone every year!
From the IMDB top 250:
L.A. Confidential (1997) La battaglia di Algeri (1966) La dolce
vita (1960) La strada (1954) La vita è Bella (1997) Ladri di
biciclette (1948) Låt den rätte komma in (2008) Laura (1944)
Lawrence of Arabia (1962) Le fabuleux destin d'Amélie Poulain
(2001) Le notti di Cabiria (1957) Le salaire de la peur (1953) Le
scaphandre et le papillon (2007) Léon (1994) Les diaboliques (1955)
Les quatre cents coups (1959) Letters from Iwo Jima (2006) Life of
Brian (1979) Little Miss Sunshine (2006) Lock, Stock and Two
Smoking Barrels (1998)
From "Lists of Bests"
A League of Their Own A Letter to Three Wives Jacques Demy's
Lola L' Argent L' Atalante L.A. Confidential La Bete Humaine -
Criterion Collection La Chinoise La Dolce Vita (Deluxe Collector's
Edition) La Haine (Criterion Collection) La Jetee/Sans Soleil La
Notte La Ronde La Strada - Criterion Collection La Vie en Rose
(Extended Version) Lacombe, Lucien - Criterion Collection Lady and
the Tramp (50th Anniversary Edition) (Platinum Edition) Lagaan -
Once Upon a Time in India Last Tango in Paris Last Year at
Marienbad Late Spring - Criterion Collection Laura Lawrence of
Arabia (Limited Edition) Le Boucher Le Cercle Rouge (The Red
Circle) - Criterion Collection Le Corbeau (The Raven) - Criterion
Collection Le Doulos - Criterion Collection Le Million - Criterion
Collection Le Notti Bianche (White Nights) - Criterion Collection
Le Plaisir Criterion Collection Le Trou - Criterion Collection
Leaving Las Vegas Leolo Leon - The Professional (Deluxe Edition)
Les Carabiniers Les Dames du Bois de Boulogne - Criterion
Collection Les Enfants Terribles: Criterion Collection Les
Miserables 1934 Les Vampires Let the right one in Lethal Weapon
(Director's Cut) Letter from an Unknown Woman Letters from Iwo Jima
/ Flags of Our Fathers (Five-Disc Commemorative Edition) Life Is
Beautiful Life of Brian Lifeboat (Special Edition) Like Water for
Chocolate Lilies of the Field Limelight (2 Disc Special Edition)
Little Big Man Little Caesar (1931) Little Children Little Miss
Sunshine Local Hero Lola Montes Lolita Lonesome Dove Lord of the
Flies - Criterion Collection Lost Horizon Lost in America Lost in
Translation Love on the Run - Criterion Collection Love Story Loves
of a Blonde - Criterion Collection Luis Bunuel's L'Age d'Or Lust,
Caution (Widescreen NC-17 Edition) The Lady Eve - Criterion
Collection The Lady from Shanghai The Lady Vanishes - Criterion
Collection The Ladykillers The Last Days of Pompeii The Last Detail
The Last Emperor - Director's Cut The Last House on the Left The
Last Laugh The Last of the Mohicans (Director's Expanded Edition)
The Last Picture Show (Definitive Director's Cut Special Edition)
The Last Seduction The Last Temptation of Christ - Criterion
Collection The Lavender Hill Mob The Leopard - Criterion Collection
The Letter The Life and Death of Colonel Blimp - Criterion
Collection The Life of Emile Zola (Special Edition) The Life of
Oharu (1952) (Import All Region) The Lion in Winter The Lion King
(Disney Special Platinum Edition) The Little Colonel The Little
Foxes The Little Mermaid (Two-Disc Special Edition) The Lodger The
Loneliness of the Long Distance Runner The Long Goodbye The Longest
Day The Longest Yard (Lockdown Edition) The Lord of the Rings - The
Motion Picture Trilogy (Platinum Series Special Extended Edition)
The Lost Honor of Katharina Blum - Criterion Collection The Lost
Weekend The Lost World (Restored Edition) The Lovers - Criterion
Collection The Lower Depths (Kurosawa 1957) / The Lower Depths
(Renoir 1936) - Criterion Collection