芝居は

As for the play; the play (as the topic)., As for the act; as for the pretense

→ 芝居
phrase Rare #24,594
As for the play; the play (as the topic). 芝居 refers here to a work or production performed as theater; は marks it as the topic.
JA: この芝居はとても面白かった。
EN: This play was very interesting.

その芝居はとても面白かった。

The play was very entertaining.

芝居は見てもらえないけど——きっと許してくれる

You won't get to see the play, but I'm sure you'll forgive me.

— いまを生きる (1989)

彼の芝居は大成功に終わった。

His play ended in great success.

芝居は面白かったですか。

Was the play interesting?

この芝居はどこで上演していますか。

Where is this play being performed?

私としては、その芝居は結構おもしろかったよ。

Personally, I thought the play was pretty interesting.

だが芝居は必要だ

But the charade is necessary.

— さらば、わが愛/覇王別姫 (1993)

phrase Rare #26,214
As for the act; as for the pretense 芝居 refers here to acting or putting on a show to hide one’s true feelings; は marks it as the topic.
JA: 緊張を隠した芝居は見事だった。
EN: Your act of hiding your nervousness was impressive.

芝居は難しいからな

Acting is difficult, you know.

— さらば、わが愛/覇王別姫 (1993)

芝居は忘れて

Drop the act.

— さらば、わが愛/覇王別姫 (1993)

ジーラント君の芝居は見事だった

Geelant, your acting was magnificent.

— 善き人のためのソナタ (2006)

芝居はどこで勉強を?

Where did you study acting?

— さらば、わが愛/覇王別姫 (1993)

"緊張を隠した芝居は見事だった"

The way he acted to hide his nervousness was remarkable.

— タイタニック (1997)

なんで皆…つまらん芝居はやめろ

Why is everyone…? Stop this tiresome charade.

— オープン・ユア・アイズ (1997)

芝居は止めろ

Stop the act.

— 道 (1954)